51464789 has 8 divisors (see below), whose sum is σ = 51901920. Its totient is φ = 51030000.

The previous prime is 51464767. The next prime is 51464813. The reversal of 51464789 is 98746415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51464789 - 2⁸ = 51464533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51464719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94859 + ... + 95399.

It is an arithmetic number, because the mean of its divisors is an integer number (6487740).

Almost surely, 2^51464789 is an apocalyptic number.

It is an amenable number.

51464789 is a deficient number, since it is larger than the sum of its proper divisors (437131).

51464789 is a wasteful number, since it uses less digits than its factorization.

51464789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its digits is 241920, while the sum is 44.

The square root of 51464789 is about 7173.8963611137. The cubic root of 51464789 is about 371.9661322117.

The spelling of 51464789 in words is "fifty-one million, four hundred sixty-four thousand, seven hundred eighty-nine".